Glossary for Bacterial diseases

Actinomycetales infection: A bacterial infection from the order of Actinobacteria. The range of symptoms is variable depending on which bacteria from the order is involved.

Actinomycosis: An infection that results from the bacteria sp. Actinomyces.

Actinomycotic appendicitis: Chronic suppurative appendicitis resulting from infection by Actinomyces israelii. . It is extremely rare, but it is important to diagnose it, since failure to treat it adequately may result in protracted illness with extensive local spread.

Anthrax meningitis: Anthrax meningitis is an infectious disease caused by breathing in the spores of the bacteria Bacillus anthracis.

Arcobacter butzleri infection: A bacterial infection that involves bacteria from the Arcobacter genus. It tends to cause gastrointestinal symptoms but may also cause blood infections. The bacteria tends to originate in pigs, cattle, sheep and water.

Arcobacter cryaerophilus infection: A bacterial infection that involves bacteria from the Arcobacter genus. It tends to cause gastrointestinal symptoms but may also cause blood infections. The bacteria tends to originate in pigs, cattle, sheep and water.

Arcobacter infection: A bacterial infection that involves bacteria from the Arcobacter genus. It tends to cause gastrointestinal symptoms but may also cause blood infections. The bacteria tends to originate in pigs, cattle, sheep and water.

Ausrian triad: The association of pneumococcal pneumonia, meningitis and endocarditis.

Austrian syndrome: A condition where alcoholism is associated with heart failure and pneumococcal meningitis.

Bacillus cereus type I food poisoning: Bacillus cereus is a bacterium that can cause food poisoning symptoms such as vomiting and diarrhea. There are two types: Type I causes mainly vomiting and is associated with fried rice whereas type II causes mainly diarrhea and is associated with meats, cereals, vegetables and milk.

Bacillus cereus type II food poisoning: Bacillus cereus is a bacterium that can cause food poisoning symptoms such as vomiting and diarrhea. There are two types: Type I causes mainly vomiting and is associated with fried rice whereas type II causes mainly diarrhea and is associated with meats, cereals, vegetables and milk.

Bacteremia: A condition where there is the presence of bacteria in the blood

Bacterial appendicitis: Appendicitis is inflammation of the inner lining of the vermiform appendix that spreads to its other parts. Appendicitis may occur for several reasons, such as an infection of the appendix, but the most important step is the obstruction of the appendiceal lumen.

Bacterial endocarditis: Infection and inflammation of the inner layers of the heart, most commonly the valves cause by bacteria.

Bacterial meningitis: Bacterial meningitis is a form of meningitis caused by bacteria that normally lives in the mouth and throat. When the immune system is unable to supress this bacteria, it travels to the cerebrospinal spinal fluid in the brain. From there it affects the membranes surrounding the brain.

Bacterial pericarditis: Inflammation and swelling of the pericardium (fibrous sac surrounding the heart) due to a bacterial infection. It can occur as a complication of a bacterial infection in some other part of the body. It is most often a complication of a respiratory infection but skin and oral infections may also be a cause. Bacterial pericarditis may also occur after heart surgery. It occurs predominantly in males aged 20 to 50 years. The condition may be misdiagnosed as a heart attack and vice versa.

Bacterial toxic-shock syndrome: A very rare, potentially fatal infection caused by toxins produced by bacteria, especially bacteria such as Staphylococcus aureus or Streptococcus pyogenes. The condition is often associated with tampon use but can originate from other sources.

Bacterial toxins -- fetal exposure: Experimental studies on mice indicate that the use of Bacterial toxins during pregnancy may cause various harmful effects on the fetus. The likelihood and severity of symptoms may be affected by the level of exposure and the stage of pregnancy that the exposure occurred at. The effect on human fetuses has not been conclusively determined.

Bacteriuria: Presence of bacteria in the urine as a result of a bacterial infection in the urinary tract. A small amount of bacteria may produce no symptoms. Large amounts of bacteria usually indicate a urinary tract infection.

Bar's syndrome: A rare type of bacterial infection that tends to occur in pregnant women. It manifests as pain in the gallbladder, ureter or appendix area as well as fever and bacteria in the urine.

Bartonella: A class of bacteria that can infect humans at a range of different sites. The most well known is Cat Scratch Disease, caused by B.henselae.

Bartonella infections: Infection with bacteria from the Bartonella genus of bacteria. Specific bacteria from within this group are Bartonella bacilliforms (Oroya fever), Bartonella Heneslae (Cat-scratch disease). Other conditions caused by this bacteria are endocarditis, bacteremia and angiomatosis. Symptoms vary depending on the type of bacteria involved and the severity of the infection - immunocompromised patients face greater risk of severe infection.

Bartonellosis: An infectious disease caused by Bartonella bacilliforms and transmitted by sandflies. It causes fever, anemia and a skin rash.

Bartonellosis due to Bartonella quintana infection: A disease caused by infection with Bartonella quintana which are transmitted by the body louse. It causes trench fever but may also result in septicemia and endocarditis in patients with a weakened immune system.

Bejel: An infectious disease caused by Treponema pallidum which is similar to the organism that causes syphilis but is not sexually transmitted.

Borreliosis: An infectious bacterial disorder that is transmitted by ticks and causes skin rashes joint swelling and other symptoms similar to the flu.

Bortonneuse fever: A mild infectious disease caused by the bacterium Rickettsia Conorrii. The disease is transmitted by a dog tick (Riphicephalus sanguineus) and is most common in countries bordering the Mediterranean Sea. Incubation usually takes about one week.

Boutonneuse fever: An infectious disease that is caused by Rickettsia conorii which is transmitted by the brown dog tick (Rhipicephalus sanguineus). The disease occurs predominantly in Mediterranean areas such as India and Africa. The onset of symptoms is usually sudden and the incubation period is usually between 6 and 10 days.

Brill disease: A form of recurring typhus caused by a bacterium called Rickettsia prowazekii and transmitted by lice. The illness may occur years after the initial sickness and tends to be not as severe.

Brill-Zinsser disease: A form of recurring typhus caused by a bacterium called Rickettsia proazekii and transmitted by lice. The illness may occur after the initial sickness and tends to be not as severe.

Brucellosis: An infectious disease caused by the Brucella genus which is transmitted from animals to humans.

Bruch's disease: An infectious disease that is caused by Rickettsia conorii which is transmitted by the brown dog tick (Rhipicephalus sanguineus). The disease occurs predominantly in Mediterranean areas such as India and Africa. The onset of symptoms is usually sudden and the incubation period is usually between 6 and 10 days.

Campylobacter fetus infection: Campylobacter fetus is a food borne bacterial infection which may vary in severity from mild to severe. The bacteria are opportunistic and mainly affect debilitated patients but can also occur in healthy patients. Abortion due to blood infection in the fetus can occur in pregnant women who become infected. The infection is less likely to cause gastrointestinal symptoms such as diarrhea than other Campylobacter infections but is prone to causing infection in other parts of the body such as the appendix, abdominal cavity, central nervous system (meningitis), gallbladder, urinary tract and blood stream. Cattle and sheep are the main source of this bacteria.

Campylobacter hylointestinalis infection: Campylobacter hyloinstesinalis is a food borne bacterial infection which may cause mild to severe gastroenteritis. Cattle, pigs, hamsters and deer are the main source of this bacteria.

Campylobacter jejuni infection: Campylobacter jejuni infection is a common food borne bacterial infection which may vary in severity from mild to severe. Death can occur in severe cases but tends to occur in patients with other existing illnesses such as HIV, cancer or liver disease. The infection can in rare cause infection in other parts of the body such as the appendix, abdominal cavity, central nervous system (meningitis), gallbladder, urinary tract and blood stream. Undercooked chicken is the main source of infection.

Capnocytophaga: A bacterial infection caused by Capnocytophaga canimorsus which is often found in normal healthy cats and dogs. The infections tends to occur mainly in immunocompromised patients, alcoholics or patients who have chronic respiratory disease or have had their spleen removed. The eyes are particularly sensitive to this infection. The incubation period can be as long as eight days.

Chancroid: An sexually transmitted disease caused by the Haemophilus ducreyi bacteria and is characterized by painful genital ulceration.

Cheese Washer's lung -- Penicillium spp.: Inhalation of cheese particles contaminated with bacteria (Penicillium spp.) in an occupational setting can cause various lung symptoms. The severity of symptoms varies depending on the duration of the exposure. The lung symptoms result from the body's immune system reacting to exposure to the bacteria in the airborne cheese particles. Chronic exposure can lead to progressive lung symptoms which can gradually lead to symptoms such as weight loss and eventually lung scarring and possibly even respiratory failure in severe cases. Acute exposure results in symptoms such as fever, chills, shortness of breath and body aches.

Chlamydia: Common sexually transmitted disease often without symptoms.

Chronic bacterial prostatitis: Chronic bacterial prostatitis is a condition in which infection of the prostate and the related symptoms develop more slowly.. The infection is normally just in the prostate, and there is no other infection such as a bladder infection. Symptoms are not as dramatic as with an acute infection. The symptoms may 'drag on', or come and go.

Clostridium sordellii: Clostridium sordellii is a rare bacterium that can cause infections such as pneumonia, arthritis, peritonitis and endocarditis. It is most often associated with childbirth, trauma, medically induced abortions, injection drug use and routine gynecological procedures. Death is not uncommon with this type of infection. In rare cases it can cause toxic shock syndrome.

Colibacillosis: Infection with a bacteria called Escherichia coli. Infection can cause severe diarrhea or septicemia. The bacteria can also produce toxins which can affect other parts of the body also. Infections can occur anywhere in the world but some developing countries have endemic areas. Transmission can occur contaminated animal products or contact with infected cats and dogs.

Conor's disease: An infectious disease that is caused by Rickettsia conorii which is transmitted by the brown dog tick (Rhipicephalus sanguineus). The disease occurs predominantly in Mediterranean areas such as India and Africa. The onset of symptoms is usually sudden and the incubation period is usually between 6 and 10 days.

Constrictive tuberculous pericarditis: Inflammation and swelling of the pericardium (fibrous sac surrounding the heart) that occurs as a complication of tuberculosis. The condition may be misdiagnosed as a heart attack and vice versa.

Cryptococcal Meningitis: Cryptococcal meningitis is an infection of the meninges (the membranes covering the brain and spinal cord), caused by the fungus Cryptococcus neoformans.

Cryptococcosis: A fungal infection caused by Cryptococcus neoformans which primarily affects the central nervous system and the lungs. People with weakened immune systems such as AIDS sufferers are generally more susceptible to this type of infection.

Cutaneous Anthrax: A skin infection caused by the spores of the anthrax bacteria called Bacillus anthracis. The infection occurs when the spores enter broken skin and result in a small red bump which blisters. The blister ruptures and forms a dark scab over dead tissue.

Disseminated Vaccinia: Disseminated vaccinia is a serious complication of smallpox vaccination. The condition involves progressive death of tissue (necrosis) at the site of the vaccination. The condition is relatively rare but can result in death so prompt diagnosis and treatment is essential. People with AIDS, immunodeficiencies, cancer, receiving immunosuppressive therapies or have some other form of immune system defect are particularly susceptible to this complication.

Edwardsiella tarda infection: A type of bacterial infection. The bacterium (Edwardsiella tarda) infects freshwater-dwelling animals and transmission occurs through consuming infected animals or contact with contaminated water. Symptoms are determined by the location of the infection. Healthy people are often able to fight of the infection but those with an underlying illness or poor immune systems may be more susceptible.

Eikenella corrodens infection: A type of anaerobic bacterial infection. The bacterium (Eikenella corrodens) is normally found in tooth plaque and can cause infection in various parts of the body. It tends to occur in patients with head and neck cancers or diabetics and drug users who lick their needles. Symptoms will depend on the location of the infection.

Enteroaggregative E. Coli infection: A bacterial infection that results from ingesting contaminated food or water and results in diarrhea that tends to last for weeks. It most often causes diarrhea in children in developing countries. Enteroaggregative refers to the grouping nature of the bacterial attack on the intestinal lining.

Enterohemorrhagic E. Coli infection: A bacterial infection that results from ingesting contaminated food or water and results in bloody diarrhea. Enterohemorrhagic refers to the intestinal bleeding associated with the infection.

Enteroinvasive E. Coli infection: A type of bacterial infection that results from ingesting contaminated food or water and results in gastroenteritis. Enteroinvasive refers to the invasion of bacteria into the gastrointestinal lining. It tends to occur as occasional outbreaks in developed countries and as endemic infections in developing countries.

Enteropathogenic E. Coli infection: A bacterial infection that results from ingesting contaminated food or water and results in watery and sometimes bloody diarrhea. It most often causes diarrhea in infants in developing countries. Contaminated drinking water and meat products are the main source of infection. Enteropathogenic refers to the way that the bacteria use specific proteins to adhere to the intestinal lining.

Enterotoxigenic E. Coli infection: A bacterial infection that results from ingesting contaminated food or water and results in diarrhea. It most often causes diarrhea in infants and travelers in underdeveloped countries where there is poor sanitation. Contaminated drinking water, soft cheese and raw vegetables are the main source of infection. Symptoms may vary from mild to severe. Enterotoxigenic refers to the fact that the bacteria produce toxins.

Erythema chronicum migrans: The first stage of Lyme disease which is transmitted by the bite of the Ixodid tick. The first stage involves a skin rash with systemic symptoms also often occurring.

Erythrasma: A condition where there is a bacterial skin infection that is located in the armpits or the groin

Escharonodulaire: An infectious disease that is caused by Rickettsia conorii which is transmitted by the brown dog tick (Rhipicephalus sanguineus). The disease occurs predominantly in Mediterranean areas such as India and Africa. The onset of symptoms is usually sudden and the incubation period is usually between 6 and 10 days.

Farmer's lung -- Thermoactinomyces vulgaris: Inhalation of moldy contaminated with bacteria (Thermoactinomyces vulgaris) in an occupational setting can cause various lung symptoms. The severity of symptoms varies depending on the duration of the exposure. The lung symptoms result from the body's immune system reacting to exposure to the bacteria in the moldy hay particles. Chronic exposure can lead to progressive lung symptoms which can gradually lead to symptoms such as weight loss and eventually lung scarring and possibly even respiratory failure in severe cases. Acute exposure results in symptoms such as fever, chills, shortness of breath and body aches.

Flavimonas oryzihabitans: A very rare bacterial infection that is most likely to occur in immunocompromised patients or through the use of catheters. Flavimonas oryzihabitans was previous known as Pseudomonas oryzihabitans.

Fournier Gangrene: A necrotizing bacterial infection of the skin on the genitals and perineum. The condition progresses rapidly and immediate medical attention is vital to prevent the bacteria entering the blood steam and resulting in death. It is usually the male genitals that are affected. The risk of the condition is increased by surgery, extreme obesity, diabetes mellitus, alcoholism, leukemia and immune system disorders.

Francisella tularenis infection: Francisella tularenis is a type of bacteria that can cause infection involving the skin, respiratory and gastrointestinal systems. The nature and severity of symptoms varies depending on the location of the infection. The bacteria primarily causes localized tissue necrosis. The pathogen is considered a possible biological weapon.

Glanders: An infectious disease caused by a bacterium (Burkholderia mallei). It is usually a disease that affects horses and mules but can also infect other animals and humans. Human infection usually occurs in laboratory settings or in those with prolonged contact with infected animals. Symptoms are determined by whether infection occurs through the skin or via the lungs or blood stream. Bloodstream infections are the most severe and usually result in death within weeks.

Human granulocytic ehrlichiosis: A rare infectious condition caused by infection with a type of bacteria called Ehrlichia (Anaplasma phagocytophilia) which attack granulocytes (a type of white blood cell). The infection is transmitted by the deer and American dog tick.

Human monocytic ehrlichiosis: A rare infectious condition caused by infection with a type of bacteria called Ehrlichia (Ehrlichia chaffeensis) which attack monocytes(a type of white blood cell). The infection is transmitted by the Lone Star and American dog tick.

Humidifier lung -- Bacillus spp.: Inhalation of humidifier vapors contaminated with a pathogen called (Bacillus spp.) can cause various lung symptoms in occupational settings. The severity of symptoms varies depending on the duration of the exposure. The lung symptoms result from the body's immune system reacting to exposure to the pathogens. Chronic exposure can lead to progressive lung symptoms which can gradually lead to symptoms such as weight loss and eventually lung scarring and possibly even respiratory failure in severe cases. Acute exposure results in symptoms such as fever, chills, shortness of breath and body aches.

India tick typhus: An infectious disease that is caused by Rickettsia conorii which is transmitted by the brown dog tick (Rhipicephalus sanguineus). The disease occurs predominantly in Mediterranean areas such as India and Africa. The onset of symptoms is usually sudden and the incubation period is usually between 6 and 10 days.

Indian tick fever: An infectious disease that is caused by Rickettsia conorii which is transmitted by the brown dog tick (Rhipicephalus sanguineus). The disease occurs predominantly in Mediterranean areas such as India and Africa. The onset of symptoms is usually sudden and the incubation period is usually between 6 and 10 days.

Infection with Mycobacterium marinum: An infectious disease caused by a bacterium called Mycobacterium marinum which can infect fish and humans. It is often transmitted through contact with contaminated fresh or salt water e.g. handling water in aquariums or swimming.

Intestinal pseudo-obstruction: A digestive disorder where the intestines are unable to contract normally and push food through the digestive system. This results in symptoms similar to an obstruction and hence the name pseudo-obstruction. The walls of the affected gastrointestinal tract becomes thin and the muscles that control its motion start to degenerate.

Israeli spotted fever: An infectious disease that is caused by Rickettsia conorii which is transmitted by the brown dog tick (Rhipicephalus sanguineus). The disease occurs predominantly in Mediterranean areas such as India and Africa. The onset of symptoms is usually sudden and the incubation period is usually between 6 and 10 days.

Kenya fever: An infectious disease that is caused by Rickettsia conorii which is transmitted by the brown dog tick (Rhipicephalus sanguineus). The disease occurs predominantly in Mediterranean areas such as India and Africa. The onset of symptoms is usually sudden and the incubation period is usually between 6 and 10 days.

Kenya tick typhus: An infectious disease that is caused by Rickettsia conorii which is transmitted by the brown dog tick (Rhipicephalus sanguineus). The disease occurs predominantly in Mediterranean areas such as India and Africa. The onset of symptoms is usually sudden and the incubation period is usually between 6 and 10 days.

Kenya tick-bite fever: An infectious disease that is caused by Rickettsia conorii which is transmitted by the brown dog tick (Rhipicephalus sanguineus). The disease occurs predominantly in Mediterranean areas such as India and Africa. The onset of symptoms is usually sudden and the incubation period is usually between 6 and 10 days.

Legionella adelaidensis infection: Legionella adelaidensis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella anisa infection: Legionella anisa is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella beliardensis infection: Legionella beliardensis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella birminghamensis infection: Legionella birminghamensis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella bozemanii infection: Legionella bozemanii is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella bruneiensis infection: Legionella bruneiensis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella brunensis infection: Legionella brunensis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella busanensis infection: Legionella busanensis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella cherrii infection: Legionella cherrii is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella cincinnatiensis infection: Legionella cincinnatiensis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella donaldsonii infection: Legionella donaldsonii is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella donaldsonil infection: Legionella donaldsonil is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella drancourtii infection: Legionella drancourtii is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella drozanskii infection: Legionella drozanskii is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella dumofii infection: Legionella dumofii is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella erythra infection: Legionella erythra is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella fairfieldensis infection: Legionella fairfieldensis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella fallonii infection: Legionella falloni is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella feelei infection: Legionella feelei is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella feeleii infection: Legionella feeleii is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella gesstiana infection: Legionella gesstiana is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella gormanii infection: Legionella micdadei is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella gratiana infection: Legionella gratiana is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella gresilensis infection: Legionella gresilensis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella hackeliae infection: Legionella hackeliae is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella impletisoli infection: Legionella impletisoli is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella isrealensis infection: Legionella isrealensis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella jamestowniensis infection: Legionella jamestowniensis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella jordanis infection: Legionella jordanis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella lansingensis infection: Legionella lansingensis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella londinensis infection: Legionella londinensis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella longbeachae infection: Legionella longbeachae is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment, especially potting mixes and compost. Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella lytica infection: Legionella lytica is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella maceachemii infection: Legionella maceachemii is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella maceachernii infection: Legionella maceachernii is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella micdadei infection: Legionella micdadei is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella monrovica infection: Legionella monrovica is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella moravica infection: Legionella moravica is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella nautarum infection: Legionella nautarum is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella oakridgensis infection: Legionella oakridgensis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella parisiensis infection: Legionella parisiensis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella quateirensis infection: Legionella quateirensis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella quinlivanii infection: Legionella quinlivanii is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella rowbothamii infection: Legionella rowbothamii is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella rubrilucens infection: Legionella rubrilucens is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella sainthelensi infection: Legionella sainthelensi is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella santicrucis infection: Legionella santicrucis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella shakespearei infection: Legionella shakespearei is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella spiritensis infection: Legionella spiritensis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella steigerwaltii infection: Legionella steigerwaltii is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella tauriensis infection: Legionella tauriensis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella tusconensis infection: Legionella tucsonensis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella wadsorthii infection: Legionella wadsorthii is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella wadsworthii infection: Legionella wadsworthii is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella waltersii infection: Legionella moravica is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella worsliensis infection: Legionella worsliensis is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionella yabuuchiae infection: Legionella yabuuchiae is a type of bacteria which can cause infection in susceptible humans. Risk factors include diabetes, certain cancers, old age, immunosuppression, emphysema and smoking. Infection is rare and can occur at any age but the elderly or those with a weak immune system are more susceptible. These particular bacteria are commonly found in the environment (e.g. water and soil). Infection usually occurs through inhalation of the bacteria which results in a lung infection called pneumonia or may result in a flu-like illness. The bacteria may also cause respiratory system irritation, inflammation or sensitization. The nature and severity of symptoms may vary amongst patients. Some people may have the bacteria in their body but may have no symptoms. The incubation period lasts from 2 to 10 days but is usually 5 to 6 days. The infection cannot be transmitted from person to person.

Legionnaires' disease: A severe respiratory disease which is caused by the Legionella pneumophila bacteria. The condition can result in pneumonia and can be life-threatening.

Leprosy, susceptibility to, 1: A chronic, progressive infectious disease caused by Mycobacterium leprae which causes skin sores and also affects the eyes, mucous membranes and peripheral nerves. The range of manifestations and severity of symptoms is quite variable. Researchers have discovered a number of genetic mutations linked to an increased susceptibility to leprosy. Type 1 is linked to a defect on chromosome 10p13.

Leprosy, susceptibility to, 2: A chronic, progressive infectious disease caused by Mycobacterium leprae which causes skin sores and also affects the eyes, mucous membranes and peripheral nerves. The range of manifestations and severity of symptoms is quite variable. Researchers have discovered a number of genetic mutations linked to an increased susceptibility to leprosy. Type 2 is linked to a defect on chromosome 6q25.2-q27.

Leprosy, susceptibility to, 3: A chronic, progressive infectious disease caused by Mycobacterium leprae which causes skin sores and also affects the eyes, mucous membranes and peripheral nerves. The range of manifestations and severity of symptoms is quite variable. Researchers have discovered a number of genetic mutations linked to an increased susceptibility to leprosy. Type 3 is linked to a defect on chromosome 4q32 and 4p14.

Leprosy, susceptibility to, 4: A chronic, progressive infectious disease caused by Mycobacterium leprae which causes skin sores and also affects the eyes, mucous membranes and peripheral nerves. The range of manifestations and severity of symptoms is quite variable. Researchers have discovered a number of genetic mutations linked to an increased susceptibility to leprosy. Type 4 is linked to a defect on chromosome 6p21.3.

Lysteria monocytoigeneses meningitis: A very rare form of meningitis (bacterial infection of the brain membrane or meninges) caused by Listeria monocytogenes. The condition is more common in the elderly and those with poor immune system and death is common.

MHC class 1 or class 2 deficiency: An inherited immunodeficiency disorder involving a deficiency of class I and II major histocompatibility complexes. Serious infections can result.

Malignant Buotonneuse fever: A serious complication of Buotonneuse fever that tends to occur mainly in patients who are old or have other conditions such as heart disease.

Marseilles fever: An infectious disease that is caused by Rickettsia conorii which is transmitted by the brown dog tick (Rhipicephalus sanguineus). The disease occurs predominantly in Mediterranean areas such as India and Africa. The onset of symptoms is usually sudden and the incubation period is usually between 6 and 10 days.

Mendelian susceptibility to atypical mycobacteria: A very rare group of disorders where a person without an immune deficiency is susceptible to infection by weak mycobacterial organisms, nontuberculous and environmental mycobacteria e.g. Calmette-Guerin Bacillus (BCG). The severity of the disorder is greatly variable and ranges from a localized recurring non-tuberculous mycobacterial infection to a potentially fatal BCG infection. Most people who are infected with these organisms have no symptoms but a genetic mutation in some people makes them more susceptible.

Meningitis: Dangerous infection of the membranes surrounding the brain.

Meningococcal A: Meningococcal meningitis is an infection that causes inflammation of the membranes covering the brain and spinal cord. Meningococcal meningitis A is caused by meningococcus A which is mostly common in hyperendemic areas in Africa known as the meningitis belt.

Meningococcal B: Meningococcal meningitis B is an infection that causes inflammation of the membranes covering the brain and spinal cord.

Meningococcal C: Meningitis C is a strain of meningococcal meningitis, a bacterial infection of the membranes surrounding the brain and spinal cord.

Moraxella catarrhalis infection: An infectious disease caused by Moraxella catarrhalis. Moraxella catarrhalis can be found in the upper respiratory tract and is often harmless and asymptomatic. However, it can also cause ear infections and sinusitis, bronchopulmonary infection as well as other infections.

Mountain fever: A viral disease transmitted through the bite of ticks (Rocky Mountain wood tick and American dog tick) who are infected with the virus. Because the virus infects blood cells including erythrocytes, transmission can also occur through transfusion with infected blood but this is uncommon. Infection is most common in Canada and parts of western US. The incubation period usually lasts between 3 and 6 days but can be as long as a few weeks. The virus tends to cause to periods of fever each lasting for a few days.

Mountain tick fever: A viral disease transmitted through the bite of ticks (Rocky Mountain wood tick and American dog tick) who are infected with the virus. Because the virus infects blood cells including erythrocytes, transmission can also occur through transfusion with infected blood but this is uncommon. Infection is most common in Canada and parts of western US. The incubation period usually lasts between 3 and 6 days but can be as long as a few weeks. The virus tends to cause to periods of fever each lasting for a few days.

Murine typhus: An infectious condition which is characterized by a similar condition to that of typhus due to Rickettsia typhi.

Mycobacterium Fortuitum: An infectious disease caused by Mycobacterium fortuitum which can be found in soil, dust and water. It usually causes infection of the skin and surrounding area usually after some sort of skin trauma such as an injury or surgery.

Mycobacterium Tuberculosis, Susceptibility to: There are a number of genes linked to an increased susceptibility to developing tuberculosis. Many people are infected with tuberculosis but develop no symptoms whereas others develop active disease. Yet other patients tend to develop a severe form of the condition where the brain and central nervous system are involved. Studies indicate that various genes may be responsible for an increased susceptibility to the infection and likewise, other genes are responsible for increased resistance to tuberculosis.

Mycobacterium Tuberculosis, Susceptibility to, 1: There are a number of genes linked to an increased susceptibility to developing tuberculosis. Many people are infected with tuberculosis but develop no symptoms whereas others develop active disease. Yet other patients tend to develop a severe form of the condition where the brain and central nervous system are involved. Studies indicate that various genes may be responsible for an increased susceptibility to the infection and likewise, other genes are responsible for increased resistance to tuberculosis. Type 1 refers to an increased susceptibility to tuberculosis which is linked to a gene on chromosome 2q35.

Mycobacterium Tuberculosis, Susceptibility to, 2: There are a number of genes linked to an increased susceptibility to developing tuberculosis. Many people are infected with tuberculosis but develop no symptoms whereas others develop active disease. Yet other patients tend to develop a severe form of the condition where the brain and central nervous system are involved. Studies indicate that various genes may be responsible for an increased susceptibility to the infection and likewise, other genes are responsible for increased resistance to tuberculosis. Type 2 refers to an increased susceptibility to tuberculosis which is linked to a gene on chromosome 8q12-q13.

Mycobacterium Tuberculosis, Susceptibility to, 3: There are a number of genes linked to an increased susceptibility to developing tuberculosis. Many people are infected with tuberculosis but develop no symptoms whereas others develop active disease. Yet other patients tend to develop a severe form of the condition where the brain and central nervous system are involved. Studies indicate that various genes may be responsible for an increased susceptibility to the infection and likewise, other genes are responsible for increased resistance to tuberculosis. Type 3 refers to an increased susceptibility to tuberculosis which is linked to a gene on chromosome 20q13.31-q33.

Mycobacterium Tuberculosis, Susceptibility to, X-linked: There are a number of genes linked to an increased susceptibility to developing tuberculosis. Many people are infected with tuberculosis but develop no symptoms whereas others develop active disease. Yet other patients tend to develop a severe form of the condition where the brain and central nervous system are involved. Studies indicate that various genes may be responsible for an increased susceptibility to the infection and likewise, other genes are responsible for increased resistance to tuberculosis. The X-linked type refers to an increased susceptibility to tuberculosis which is linked to the X chromosome.

Necrobacillosis: A form of bacterial blood infection caused by Fusobacterium necrophorum which can occur as a complication of throat infections. The infection is potentially fatal and can cause the development of abscesses in various parts of the body including the brain and lungs .

Necrotizing fasciitis: A severe, progressive skin infection which causes progressive destruction of skin and underlying tissue. It is caused by certain bacteria and has a high mortality rate.

Neonatal bacterial meningitis: Bacterial meningitis that occurs in an infant under 3 months of age. Bacterial meningitis is a bacterial brain infection.

Neurosyphilis: A complication of untreated syphilis where the infection invades the central nervous system (brain and spinal cord) and causes a range of neurological symptoms. The condition can be life-threatening but some cases are asymptomatic. There are four forms of the condition: asymptomatic, meningovascular, tabes dorsalis and general paresis.

Neurosyphilis -- asymptomatic: An invasion of the nervous system by syphilis which causes no symptoms. It generally occurs before the symptoms of syphilis appear.

Neurosyphilis -- general paresis: A complication of untreated syphilis where the infection invades the brain cells and causes a range of neurological symptoms. The condition is progressive and life-threatening.

Neurosyphilis -- meningovascular: A complication of untreated syphilis where the infection invades the central nervous system and causes cranial nerve palsies and pupil abnormalities.

Neurosyphilis -- tabes dorsalis: A complication of untreated syphilis where the infection invades the spinal cord and progressively impairs muscle function and nerve damage may also occur. This form of the condition is progressive and life-threatening.

Pinta: An infectious skin disease caused by infection with the spirochete Treponema carateum which causes skin rash and discoloration.

Plague: A rare but serious bacterial infection involving the bacterium Yersinia Pestis which can be carried by rodents and transmitted to humans by flea bites or through direct contact with an infected animal.

Pneumococcal meningitis: Pneumococcal meningitis is an inflammation or infection of the membranes covering the brain and spinal cord caused by Streptococcus pneumoniae (also called pneumococcus).

Pneumonia, Staphylococcal: Inflammation of the lungs and bronchioles caused by the Staphylococcal bacteria. The condition is not common and often occurs as a complication of influenza or other viral respiratory infections. This form of pneumonia is considered serious and up to a third of cases can result in death.

Primary agammaglobulinemia: A genetic disorder characterized by a deficiency of antibodies due to abnormal development of B lymphocytes.

Primary syphilis: A condition which is characterized by a primary chancre which is infectious and painless

Progressive Vaccinia: Progressive vaccinia is a serious complication of smallpox vaccination. The condition involves progressive death of tissue (necrosis) at the site of the vaccination. The condition is relatively rare but can result in death so prompt diagnosis and treatment is essential. People with AIDS, immunodeficiencies, cancer, receiving immunosuppressive therapies or have some other form of immune system defect are particularly susceptible to this complication.

Prostatic tuberculosis: Tuberculous prostatitis must be viewed as a systemic disease, and the treatment is primarily medical. Hospitalization is usually unnecessary but may be required to treat noncompliant patients.

Pyogenic pericarditis: The pericardium is the fibrous sac surrounding the heart. Infection can cause the pericardium to become inflamed and swollen and to produce pus. It may result from a ruptured esophagus, heart infection or from surgery involving the heart or chest cavity. The condition may be misdiagnosed as a heart attack and vice versa.

Pyomyositis: A bacterial infection of the muscles caused by Staphylococcus aureus. It occurs in tropical areas and people with weak immune systems are the most vulnerable.

Rheumatic fever: An inflammatory disorder that can occur as a complication of untreated streptococcal bacterial infection such as strep throat or scarlet fever. The condition may affect the brain, skin, heart and joints.

Rhodococcus equi: A rare form of bacterial infection that usually affects horses and foals but can cause infection mainly in immunocompromised people. Infection usually starts at the site of some sort of trauma. Symptoms and severity may vary considerably depending on the location and extent of the infection.

Rickettsia siberica: An infectious disease caused by Rickettsia siberica and transmitted by ticks. The condition is endemic in central Asia and can be fatal in severe cases.

Rickettsia typhi: An infectious diseases caused by Rickettsia typhi and transmitted by fleas. It is a generally mild form of typhus which rarely causes death.

Rickettsial disease: A disease caused by infection with rickettsial bacteria which are transmitted by arthropods such as ticks, mites and lice. Different rickettsial bacteria can cause different types of infections such as typhus, spotted fever and trench fever. Symptoms can vary somewhat between the different types.

Ricketttsialpox: An infectious disease caused by Rickettsia akari and transmitted by mice mites.

Rocky Mountain spotted fever: A bacterial disease caused by Rickettsia rickettsii and transmitted by ticks. The condition causes fever and a characteristic rash and may be fatal in severe or untreated cases.

STARI: Bacterial infection and skin rash due to illness from a tick bite

Salmonella anatum infection: An infection caused by bacteria from the Salmonella genus which mainly causes gastroenteritis. Infection is caused by consuming contaminated food or drinks.

Salmonella choleraesuis infection: An infection caused by bacteria from the Salmonella genus which mainly causes gastroenteritis. Infection is caused by consuming contaminated food or drinks.

Salmonella heidelberg infection: An infection caused by bacteria from the Salmonella genus which mainly causes gastroenteritis. Infection is caused by consuming contaminated food or drinks.

Salmonella hirschfeldii infection: An infection caused by bacteria from the Salmonella genus which mainly causes gastroenteritis. Infection is caused by consuming contaminated food or drinks.

Salmonella newport infection: An infection caused by bacteria from the Salmonella genus which mainly causes gastroenteritis. Infection is caused by consuming contaminated food or drinks.

Salmonella paratyphi A infection: An infection caused by bacteria from the Salmonella genus which causes typhoid fever, with symptoms such as gastroenteritis. Infection is caused by consuming contaminated food or drinks.

Salmonella schottmuelleri infection: An infection caused by bacteria from the Salmonella genus which mainly causes gastroenteritis. Infection is caused by consuming contaminated food or drinks.

Salmonella typhi infection: An infection caused by bacteria from the Salmonella genus which causes typhoid fever, with symptoms such as gastroenteritis. Infection is caused by consuming contaminated food or drinks.

Salmonella typhimurium infection: An infection caused by bacteria from the Salmonella genus which can result in gastroenteritis, fever or may be asymptomatic. Infection is caused by consuming contaminated food or drinks.

Serratia: An infectious disease caused by bacteria from the Serratia genus. The bacteria can cause urinary tract infection, pneumonia, respiratory tract infections, endocarditis, osteomyelitis, septicemia, eye infection, meningitis and wound infections. This type of bacterial infection shows some antibiotic resistance. Symptoms and severity depend on the location and extent of the infection.

Serratia cerebral abscess: Cerebral abscess caused by bacteria from the Serratia genus. These bacteria are a rare cause of infection. The risk of infection is increased by head trauma or any sort of surgery or testing involving the central nervous system.

Serratia ear infection: Ear infection caused by bacteria from the Serratia genus. These bacteria are a rare cause of infection.

Serratia meningitis: Meningitis caused by bacteria from the Serratia genus. These bacteria are a rare cause of infection. The risk of infection is increased by head trauma or any sort of surgery or testing involving the central nervous system.

Shigella boydii infection: Shigella boydii is a species of bacteria from the Shigella genus. Infection with this bacteria causes diarrhea. The severity of the disease is variable depending on the underlying health of the individual - the young and old tend to be more severely affected. Infection usually occurs through the fecal-oral route. Infection can be transmitted between people unless appropriate hygiene measures are undertaken. Some infected patients are asymptomatic and are those more likely to transmit infection to other people.

Shigella dysenteriae infection: Shigella dysenteriae is a species of bacteria from the Shigella genus. Dysenteriae is the most common cause of epidemic dysentery in condensed populations such as refugee camps. Infection with this bacteria causes diarrhea. The severity of the disease is variable depending on the underlying health of the individual - the young and old tend to be more severely affected. Infection usually occurs through the fecal-oral route. Infection can be transmitted between people unless appropriate hygiene measures are undertaken. Some infected patients are asymptomatic and are those more likely to transmit infection to other people.

Shigella flexneri infection: Shigella flexneri is a species of bacteria from the Shigella genus. Flexneri is the most common cause of Shigellosis in the world. Infection with this bacteria causes diarrhea. The severity of the disease is variable depending on the underlying health of the individual - the young and old tend to be more severely affected. Infection usually occurs through the fecal-oral route. Infection can be transmitted between people unless appropriate hygiene measures are undertaken. Some infected patients are asymptomatic and are those more likely to transmit infection to other people.

Shigella sonnei infection: Shigella sonnei is a species of bacteria from the Shigella genus. Sonnei is the most common cause of Shigellosis in the developed world. Infection with this bacteria causes diarrhea. The severity of the disease is variable depending on the underlying health of the individual - the young and old tend to be more severely affected. Infection usually occurs through the fecal-oral route. Infection can be transmitted between people unless appropriate hygiene measures are undertaken. Some infected patients are asymptomatic and are those more likely to transmit infection to other people.

Shigellosis: An infectious disease which affects the intestinal tract and is caused by the Shigella bacteria. The condition may be severe, especially in children, but may be asymptomatic in some cases. The disease can be transmitted through fecal-oral contact.

Small bowel bacterial overgrowth syndrome: The small bowel is a part of the digestive system. A healthy small bowel contains some bacteria but in bacterial overgrowth syndrome, there are an excessive number of bacteria. Abnormal small bowel muscle function is often associated with conditions such as intestinal motility problems due to neurological diseases and muscular diseases, diabetes mellitus, small intestine obstruction and diverticulitis. It may also be caused by certain medications and abdominal surgeries.

Spirochetes disease: Infection with a type of bacteria which is often found in mud, sewage and polluted water. Symptoms are determined by the species involved. Diseases caused by this bacteria include Treponema infection and borreliosis.

Sporotrichosis: A fungal skin infection caused by the fungus Sporothrix schenckii. Usually only the skin is infected but bones, lungs and central nervous system can rarely be affected also. Transmission usually occurs through infection of a skin wound.

Sporotrichosis -- pulmonary: A fungal infection caused by the fungus Sporothrix schenckii. Usually only the skin is infected but bones, lungs and central nervous system can rarely be affected also. Transmission usually occurs through inhalation of the fungus.

Staphylococcal toxic shock syndrome: A very rare, potentially fatal infection caused by the bacterial toxins produced by Staphylococcus aureus or Streptococcus pyogenes. The condition is often associated with tampon use but can originate from other sources.

Stenotrophomonas maltophilia: A bacteria that is usually found in aquatic environments, is not very virulent and rarely infects humans. Most cases of infection tends to occur through use of hospital appliances such as catheters, I.V lines and breathing tubes in immunocompromised people.

Streptococcal Group A invasive disease: Group A streptococci are bacteria which are commonly found in the throat or on the skin. Often it causes no symptoms but in some cases it can cause mild illnesses such as strep throat or more serious, life-threatening diseases such as toxic shock syndrome or flesh-eating disease. Transmission can occur through direct contact with infected skin sores or nose and throat discharges. Symptoms are determined by the location and extent of the bacterial infection.

Streptococcal Group B invasive disease: Infection with bacteria called Group B Streptococcus which can cause severe symptoms or even death. The bacteria occur in the stomach and the urogenital tract of females and are normally harmless and cause no symptoms. However, it can cause a range of diseases in newborns, the elderly and people with poor immune systems.

Syphilis: A sexually transmitted disease caused by a bacteria (Treponema pallidum). The condition is often asymptomatic in the early stages but one or more sores may be present in the early stages. Untreated syphilis usually results in remission of visible symptoms but further severe damage may occur to internal organs and other body tissues which can result in death.

Syphilis, latent: A rare infectious diseases which is transmitted through sexual contact and caused by Treponema pallidum (a spirochete bacterium). Latent syphilis is the term used to describe the period (usually following the second stage) where the patient has no symptoms but still has the infection.

Tertiary syphilis: A condition which is characterized by late generalized syphilis with involvement of many organs and tissues

Tetanus: A disease caused by chemicals which are produced by a bacterium (clostridium tetani) and are toxic to the nerves. The infection usually occurs when the bacteria enter the body through a deep wound - these bacteria are anaerobic and hence don't need oxygen to survive.

The clap: A sexually transmitted infection by the bacteria Neisseria gonorrhoeae.

Treponema infection: A rare infectious diseases which is transmitted through sexual contact and caused by Treponema pallidum (a spirochete bacterium). Untreated cases can result in severe complications and even death.

Tuberculosis, pulmonary: Lung infection caused by a contagious bacterium called Mycobacterium tuberculosis. Infection occurs through inhalation of contaminants from infected people. Infection may spread from the lungs to other organs. The infection may incubate for years, be asymptomatic or produced symptoms within weeks. Immunocompromised people may suffer severe symptoms.

Tuberculous meningitis: Tuberculous meningitis is an infection of the membranes covering the brain and spinal cord caused by Koch's bacillus.

Tuberculous pericarditis: Inflammation and swelling of the pericardium (fibrous sac surrounding the heart) that occurs as a complication of tuberculosis. The condition may be misdiagnosed as a heart attack and vice versa.

Tuberculous uveitis: Eye infection by a tuberculous bacteria called Mycobacteriu tuberculosis. The eye infection may occur secondary to a tuberculous infection of the rest of the body or it may occur only in the eye.

Tularemia: A rare infections disease caused by the bacterium Francisella tularensis (a gram-negative pleomorphic coccobacillus). Transmission occurs through contact with infected animals or there habitats e.g. bites from infected insects or other animals, eating infected wild animals, contact with contaminated water and soil. Symptoms can vary greatly depending on the method of infection. For example infection through inhalation can cause symptoms similar to pneumonia, eating infected animals can cause a sore throat and abdominal symptoms and transmission through the skin can cause result in a painful skin ulcer.

Ureaplasma urealyticum: A condition which is characterized by urethritis in males and genital tract infections in females

Urosepsis: Can be used interchangeably to describe either (a) urinary tract infection (UTI) or (b) the rare occurrence of bacterial seeding into the blood stream due to an UTI causing a generalised infection.

Vaccinia gangrenosa: Vaccinia gangrenosa is a serious complication of smallpox vaccination. The condition involves progressive death of tissue (necrosis) at the site of the vaccination. The condition is relatively rare but can result in death so prompt diagnosis and treatment is essential. People with AIDS, immunodeficiencies, cancer, receiving immunosuppressive therapies or have some other form of immune system defect are particularly susceptible to this complication.

Vaccinia necrosum: Vaccinia necrosum is a serious complication of smallpox vaccination. The condition involves progressive death of tissue (necrosis) at the site of the vaccination. The condition is relatively rare but can result in death so prompt diagnosis and treatment is essential. People with AIDS, immunodeficiencies, cancer, receiving immunosuppressive therapies or have some other form of immune system defect are particularly susceptible to this complication.

Vibrio: An organism of the genus Vibrio or other spiral motile organism

Vibrio infection -- Vibrio cincinnatiensis: An infectious disease caused by a bacteria called Vibrio cincinnatiensis. The nature and severity of symptoms can vary considerably depending on the type of infection caused - gastroenteritis, wound infection or septicemia. This particular infection however tends to cause mainly meningitis. The elderly and very young tend to suffer more severe symptoms.

Vibrio infection -- Vibrio damsela: An infectious disease caused by a bacteria called Vibrio damsela. The nature and severity of symptoms can vary considerably depending on the type of infection caused - gastroenteritis, wound infection or septicemia. Wound infection is the most common disease associated with this bacteria and septicemia and gastroenteritis is relatively rare. Infection usually occurs through consumption of contaminated seafood or exposure of a wound to contaminated water. The elderly and very young tend to suffer more severe symptoms.

Vibrio infection -- Vibrio fluvialis: An infectious disease caused by a bacteria called Vibrio fluvialis. The nature and severity of symptoms can vary considerably depending on the type of infection caused - gastroenteritis, wound infection or septicemia. Gastroenteritis is the most common disease associated with this bacteria and septicemia is relatively rare. Infection usually occurs through consumption of contaminated seafood or exposure of a wound to contaminated water. The elderly and very young tend to suffer more severe symptoms.

Vibrio infection -- Vibrio furnissii: An infectious disease caused by a bacteria called Vibrio furnissii. The nature and severity of symptoms can vary considerably depending on the type of infection caused - gastroenteritis, wound infection or septicemia. Gastroenteritis is the most common disease associated with this bacteria and septicemia and wound infection is relatively rare. Infection usually occurs through consumption of contaminated seafood or exposure of a wound to contaminated water. The elderly and very young tend to suffer more severe symptoms.

Vibrio infection -- Vibrio holisae: An infectious disease caused by a bacteria called Vibrio holisae. The nature and severity of symptoms can vary considerably depending on the type of infection caused - gastroenteritis, wound infection or septicemia. Gastroenteritis is the most common disease associated with this bacteria and septicemia is relatively rare. Infection usually occurs through consumption of contaminated seafood or exposure of a wound to contaminated water. The elderly and very young tend to suffer more severe symptoms.

Vibrio infection -- Vibrio metschnikovii: An infectious disease caused by a bacteria called Vibrio metschnikovii. The nature and severity of symptoms can vary considerably depending on the type of infection caused - gastroenteritis, wound infection or septicemia. Gastroenteritis is the most common disease associated with this bacteria and septicemia is relatively rare. Infection usually occurs through consumption of contaminated seafood or exposure of a wound to contaminated water. The elderly and very young tend to suffer more severe symptoms.

Vibrio infection -- Vibrio mimicus: An infectious disease caused by a bacteria called Vibrio mimicus. The nature and severity of symptoms can vary considerably depending on the type of infection caused - gastroenteritis, wound infection or septicemia. Gastroenteritis is the most common disease associated with this bacteria and septicemia and wound infection is relatively rare. Infection usually occurs through consumption of contaminated seafood or exposure of a wound to contaminated water. The elderly and very young tend to suffer more severe symptoms.

Waterhouse-Friederichsen syndrome: A rare syndrome that occurs as complication of septicemia (often due to meningococcal or pneumococcal infection) and involves blood coagulation in blood vessels, adrenal gland hemorrhages and ultimately kidney failure.

Weil syndrome: A rare infectious disorder which affects liver and kidney function and also causes hemorrhaging. It is a severe form of the second phase of leptospirosis which is an infection caused by the spiral shaped bacteria Leptospira interrogans which is transmitted from animals to humans.

Yaws: A rare infections disease caused by the spiral-shaped bacteria Treponema pertenue. The disease consists of three phases: skin lesions are followed by bone, joint and widespread skin symptoms and finally by inflammation and destruction of cartilage in the nose, pharynx and palate. Transmission can be through direct contact with infected skin, insect bites or sex.

Yersinia pseudotuberculosis: An infectious disease caused by a bacterium called Yersinia pseudotuberculosis which is transmitted from direct and indirect contact with infected animals. Human to human transmission may also occur through fecal-oral contact.

Yersiniosis: A condition which is characterized by infectious diarrhea, enteritis, ileitis and occasionally septicaemia

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